Joiner&#39;s clamp.



No. 7118,54?. I PATENTED'JAN. 13, 19U3.

. W. R. TUCKER.

JoINERs CLAMP'.

APPLICATION FILED MAY 5, 1902. H0 MODEL.

IINTTnn STATES PATENT OFFICE.

WILLIAM RENNIE TUCKER, SASKATOON, CANADA.

JOINERS CLAMP.

SEECIFICATION forming part of Letters Patent No. 718,547, dated January 13, 1903.

Application filed May 5, 1902. Serial No. 105,878. (No model.)

To @ZZ whom t may concern:

Be it known that I, WILLIAM RENNIE TUCKER, a subject of the King of Great Britain, residing at Saskatoon, county of Saskatchewan, North-West Territories, Canada,

have invented certain new and useful Improvements in Joiners Clamps; and I do hereby declare that .the following is a full, clear, and exact description of the invention,

Io such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to an improved clamp for joiners, cabinet-makers, and carpenters generally, adapted for holding work which is being glued and for other like purposes.

The object of my invention is to produce a clamping-iron to cooperate with a stick of any length and which shall be immediately adaptable to any size or length of work by simply zo substituting a longer stick for a shorter and to produce the said clamping-iron of such a shape that a stick may be made to cooperate with it upon the spot and within a few minutes by any carpenter, and the same may be readily inserted into or removed from the clamping-iron, so that a carpenter need only carry in his kit the iron itself and substitute any handy stick to, complete the clamp, or, on the other hand, he may have sticks of various sizes ready for use in his shop, which may be selected from according to the size and shape of work required.

To these ends my invention consists, substantially, in an iron or steel clamping-head which has a socket in it suitable for receiving and holding a stick and has cross-pieces which are adapted to sit in. notches cut in the stick to maintain it against the pressure of the clamp, and the clamping-head is further 4o provided with means for inserting a wooden peg or metallic pin for holding the stick when inserted into the socket. The clam ping-head is, moreover, provided with a screw-socket and clamping-screw of any suitable form,such

as is ordinarily used in such apparatus, and I may supplement the head, stick, and screw by a slidable or adjustable clamping-block having an iron bail attached thereto, which is adapted to be hooked into notches on the 5o under side of the stick to form an opposing base to the end of the clamping-screw.

My invention consists, moreover, in the construction and combination of parts set forth in the following description and more particularly brought out in the claims.

I have shown in the accompanying drawings two forms of my invention,and wherein- Figure 1 is a side elevation of the first form. Fig. 2 is a central vertical longitudinal section thereof. Fig. 3 is a like section of the second form of my invention. Fig. 4 is a side elevation of a modified form of clampingstick.

The same numerals of reference denote like parts in all the figures of the drawings.

The clamp itself, as shown in Fig. 1, is made up of a suitable clamping-iron 5, having a socketed screw-head 6, into which is fitted a clamping-screw 7, a clamping-stick 8, adapted to be held by and to coperate with said clamping-iron, and an adjustable block 9, adapted to form the opposing member which coacts with the clamping-screw 7. The screw 7 is provided at its rear end with a head 10, in which is provided a suitable handle-pin 11. At its other end it may have mounted thereon a swiveled block l2, which is held in position by a screw 1,3 upon the shouldered end 14 of the clamping-screw. The clampingiron 5 has two longitudinal sides 15, which are joined together at their rear ends by a transverse member 16, perpendicular to the direction of the clamping-stick, and at their lower edge and forward end by asecond transverse member 17 of the same form as the member l-that is to say,of oblon g rectangular section, but laid longitudinally with the stick-andon their upper side at an intermediate point by a third transverse member 18, which is similarly positioned relative to the stick to the member 17, except that it is on the upper side thereof.

The clamping-stick 8 has its rear end formed to cooperate with the clamping-head, being provided with two rectangular notches 19 and 19, respectively, on its lower and upper sidesand opposite the transverse members 17 and 18 to receive the same when the butt or upper end 2O of the clampingstick is seated squarely against the transverse member 16. When in this position, the stick is secu red against removal by a pin 21, driven lon- IOO gitudinally into the butt-end of the stick above the transverse member 16.

The lower or front end of the stick, as herein shown, is provided with any suitable retaining means, such as a series of transverse notches 22, which are adapted to receive. the bail 23 of the clamping-block 9, which bail is pivoted thereto upon a transverse pin 24. This device foradj ustably securing the clamping-block is of course merely illustrated as one in common use, and any other device might equally well be substituted, the special form of clamping-block forming no part of my invention.

A somewhat modified form of my invent-ion is shown in Fig. 3, wherein the clamping-iron has two coperating transverse members 16 and 18 close to the head end of the iron, and the transverse member 17 is similarly positioned to that shown in Figs. 1 and 2. In this case the stick S' has its front end reduced on both sides, so as to fit into the socket formed between the two members 16 and 18', the latter extending around on the lower side of the iron, as shown. In this form the stick is secured in position by a transverse pin 21', near the lower end of the clamping-iron, which passes through the sides of the iron. The other parts are the same in form and arrangement as shown in Figs. 1 and 2.

In general I consider the first form somewhat preferable to that of the second form, as it requires less cutting and fitting of the stick.

A modified form of stick which may also be used is shown in Fig. 4, this stick being one which avoids the use of any adjustable clamping-block,being made on the spot for different work as required, and it shows the adaptability of my clamp,because it is not necessary for the carpenter to carry anything other than the iron 5. The stick S' (shown in Fig. 4) is provided with a simple laterally-extending foot-piece or head 24', which performs the same function as the clamping-block 9.

While I have shown in the accompanying drawings the preferred form of my invention, it will be understood that I do not limit myself to the precise form shown, for many of the details may be changed in form or position without aecting the operativeness or utility of my invention, and I therefore reserve the right to make such modifications as are included in the scope of the following claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A clamping-iron comprising a socketed screw-head, a pair of longitudinal sides, and transverse members joining said sides above and below the same and at the butt-end thereof, whereby to receive a stick and adapted to be received in notches in the same.

2. A clamping-iron comprising a socketed screw-head, a clamping-screw operable in said head, a pair of longitudinal sides adapted to receive a clamping-stick between them, a transverse member at the butt-end of said iron against which the rear end of the stick is adapted to abut, a second transverse member joining said sides at the lower edge thereof and at the forward end adapted to be received in a notch in the stick, and a transverse pin adapted to secure the stick in position.

3. A clamping-iron comprising a socketed head, a pair of longitudinal sides adapted to form a socket for a clamping-stick, a transverse member at the butt-end of said sides against which the butt-end of the stick is adapted to abut, a transverse member joining the two sides at their lower front portion and adapted to be received by a notch in the stick, and a third transverse member joining the two sides at their upper edge and at an intermediate point and adapted to be received in the second notch in the stick.

4. A joiners clamp comprisinga clampingiron. having a socketed screw-head, a pair of longitudinal sides, a transverse member joining the two transverse sides at their butt-end, a second transverse member joining the two sides at their frontend and at the lower edge thereof, and a third transverse memberjoining the two sides at their upper edge and at an intermediate point, in combination with a clamping-stick having notches therein adapted to receive and hold said second and third transverse members and arranged to abut against said first transverse member, a clamping-head carried by the stick, a pin driven into the end of the stick above said first transverse member, whereby to maintain it in position, and a clamping-screw operable in said socketed head, substantially as described.

In witness whereofI have hereunto set my hand in the presence of two witnesses.

WILLIAM RENNIE TUCKER.

Witnesses:

W. R. C. WILLIS, E. S. ANDREWS.

IOO 

